Binaural processing by the gecko auditory periphery

Binaural processing by the gecko auditory periphery.

Lizards have highly directional ears, owing to strong acoustical coupling of the eardrums and almost perfect sound transmission from the contralateral ear. To investigate the neural processing of this remarkable tympanic directionality, we combined biophysical measurements of eardrum motion in the Tokay gecko with neurophysiological recordings from the auditory nerve. Laser vibrometry shows tha...

CrossLink Directionality: Facilitating true binaural auditory processing

Robust Speech Recognition Based on Binaural Auditory Processing

This paper discusses a combination of techniques for improving speech recognition accuracy in the presence of reverberation and spatially-separated interfering sound sources. Interaural Time Delay (ITD), observed as a consequence of the difference in arrival times of a sound to the two ears, is an important feature used by the human auditory system to reliably localize and separate sound source...

Auditory Speech Processing is Affected by Visual Speech in the Periphery

Two experiments were conducted to determine whether visual speech presented in the visual periphery affects the perceived identity of speech sounds. Auditory speech targets (vCv syllables) were presented in noise (-8 dB) with congruent or incongruent visual speech presented in full-face or upper-half face conditions. Participants’ eye-movements were monitored to assure that visual speech input ...

Comparison of binaural auditory brainstem responses and the binaural difference potential evoked by chirps and clicks.

Rising chirps that compensate for the dispersion of the travelling wave on the basilar membrane evoke larger monaural brainstem responses than clicks. In order to test if a similar effect applies for the early processing stages of binaural information, monaurally and binaurally evoked auditory brainstem responses were recorded for clicks and chirps for levels from 10 to 60 dB nHL in steps of 10...